Calendar: 1972-1973 Page 463

Annual Report of the Delegacy lxxxi Dr Healey was elected to Smithsonian Fellowship and spent the year undertaking research at the Smithsonian Institute Barra Colorado Canal Zone Dr Kathleen Lyons was appointed Visiting Lecturer at the University of Lagos for three months from January to March She gave papers at the symposium held jointly by the Linnean Society the British Society for Parasitology and the British Section of the Society of Protozoologists and at the second sixth-form symposium at the Zoological Society of London on 'The biology of Entobdella soleae' Dr Stoddart was elected Scientific Secretary of the Mammal Society He gave an address to the Silwood Park Ecology Group of Imperial College Dr Whitfield gave an invited paper at Imperial College on 'The penetration of tissue barriers by acanthocephalans' Dr Cox has begun collaborative work with Dr Wedder- burn of the Royal College of Surgeons to investigate the enhancing effect of cancer producing viruses on malaria and piroplasmosis and the reciprocal effects Dr Pye purchased an on-line data processing computer for physiologi- cal work with the aid of research grant from the Science Research Council He spent the summer vacation working on ultrasonic bio- acoustics in mammals and insects in Panama and neighbouring coun- tries receiving financial support from the United States Air Force and the Smithsonian Institution Dr Lyons was awarded grant from the Browne Fund of the Royal Society to continue her work on fish parasites at the laboratories of the Marine Biological Association at Plymouth Dr Stoddart made research visit to the Czechoslovak Academy of Sciences Institute of Vertebrate Zoology at Brno Dr Gillian Sales was granted renewal of her Fellowship from the Commissioners for the Exhibition of 1851 and returned to the department in January to continue her research on the influence of ultrasound in aggressive-submissive behaviour of rats with special attention to the hearing of rodents at high frequencies She gave an interview and demonstration for 'New Worlds' broadcast on Radio in July and attended the scientific meeting of the Mammal Society at Norwich at Easter Mr Ε Okon returned to his post as Assistant Lecturer in Zoology at the University of Ife having completed the research for his Ph